ESSEX TECH NIMS TEST PRACTICE 2026|NEW 250+
EXAM PRACTICE Qs&As|ALREADY VERIFIED AND
GRADED A+
1. Which of the following answers best identifies a countersink tool?
B. used to create an angled bevel to remove burrs, aid the start of taps, and
the entry of dowel pins
D. used to cut a tapered opening at the beginning of an existing hole to a
specific depth to allow a flathead screw to sit flush or below the parts surface
2. Typically done as part of the start-up procedure, which is the process of
positioning the CNC machining center's axes at a fixed reference position to
allow the machine control unit (MCU) to accurately establish/track the table's
position?
ANSWER:->>>Homing
3. After roughing an internal pocket, a program stop is utilized in the program
so the metal chips can be cleared. What will restart the machine from this
point in the program?
ANSWER:->>>Cycle start
,4. Which of the following describes a material safety data sheet (MSDS)?
- MSDS is used to comply with OSHA's hazard communication standard
- It identifies the chemicals in a workplace and their recommended uses
- It provides information about safe handling of chemicals and materials
ANSWER:->>> (All of the above describe and MSDS)
5. A part print calls for a workpiece to have a finished length of 2.025".
Leaving 0.100" on the length for machining operations, what is the length of
stock that must be cut?
ANSWER:->>>2 1/8"
6. Which statement best describes a datum?
ANSWER:->>>Shown by a capital letter in a box and signifies a plane from
which dimensions are referred
7. In which of the following scenarios is the individual following recommended
safety guidelines?
ANSWER:->>>You wear safety glasses everytime you enter the shop floor and
remove them only when you have exited the manufacturing environment.
,8. To maintain proper coolant levels and concentrations and to ensure a
machine tool has sufficient lubrication, a machinist should check the machine's
fluids:
ANSWER:->>>Every shift
9. Select the answer that BEST describes the JOG mode function.
ANSWER:->>>Allows manual control of axes movement
10. Select the answer that BEST describes the position page on a CNC control
ANSWER:->>>A digital reference screen that displays work and machine
coordinates as well as the distance to go for positioning command
11. If you are standing in front of a horizontal CNC milling machine, which axis
moves in and out (front to back)?
ANSWER:->>>Z
12. G codes are referred to as:
ANSWER:->>>Preparatory commands
, 13. The threaded stud that is attached to a machining center's tool holder(s)
and is gripped by a mechanism that secures the tapered tool holder in the
spindle defines:
ANSWER:->>>Retention Knob
14. Incremental programming or specifying a distance from the current
position instead of from the origin defines which code?
ANSWER:->>>G91
15. Which of the methods listed here is recommended when adding fluid to a
coolant tank?
ANSWER:->>>Check the coolant ratio with a refractometer. Add soluble oil
and/or water as necessary to obtain the desired concentration
16. Select the answer that BEST describes the edit mode function
ANSWER:->>>Allow programs to be modified
17. To program the spindle to cut from point A to point B. Which axes and in
what directions would the spindle need to move?
ANSWER:->>>X+Y+
EXAM PRACTICE Qs&As|ALREADY VERIFIED AND
GRADED A+
1. Which of the following answers best identifies a countersink tool?
B. used to create an angled bevel to remove burrs, aid the start of taps, and
the entry of dowel pins
D. used to cut a tapered opening at the beginning of an existing hole to a
specific depth to allow a flathead screw to sit flush or below the parts surface
2. Typically done as part of the start-up procedure, which is the process of
positioning the CNC machining center's axes at a fixed reference position to
allow the machine control unit (MCU) to accurately establish/track the table's
position?
ANSWER:->>>Homing
3. After roughing an internal pocket, a program stop is utilized in the program
so the metal chips can be cleared. What will restart the machine from this
point in the program?
ANSWER:->>>Cycle start
,4. Which of the following describes a material safety data sheet (MSDS)?
- MSDS is used to comply with OSHA's hazard communication standard
- It identifies the chemicals in a workplace and their recommended uses
- It provides information about safe handling of chemicals and materials
ANSWER:->>> (All of the above describe and MSDS)
5. A part print calls for a workpiece to have a finished length of 2.025".
Leaving 0.100" on the length for machining operations, what is the length of
stock that must be cut?
ANSWER:->>>2 1/8"
6. Which statement best describes a datum?
ANSWER:->>>Shown by a capital letter in a box and signifies a plane from
which dimensions are referred
7. In which of the following scenarios is the individual following recommended
safety guidelines?
ANSWER:->>>You wear safety glasses everytime you enter the shop floor and
remove them only when you have exited the manufacturing environment.
,8. To maintain proper coolant levels and concentrations and to ensure a
machine tool has sufficient lubrication, a machinist should check the machine's
fluids:
ANSWER:->>>Every shift
9. Select the answer that BEST describes the JOG mode function.
ANSWER:->>>Allows manual control of axes movement
10. Select the answer that BEST describes the position page on a CNC control
ANSWER:->>>A digital reference screen that displays work and machine
coordinates as well as the distance to go for positioning command
11. If you are standing in front of a horizontal CNC milling machine, which axis
moves in and out (front to back)?
ANSWER:->>>Z
12. G codes are referred to as:
ANSWER:->>>Preparatory commands
, 13. The threaded stud that is attached to a machining center's tool holder(s)
and is gripped by a mechanism that secures the tapered tool holder in the
spindle defines:
ANSWER:->>>Retention Knob
14. Incremental programming or specifying a distance from the current
position instead of from the origin defines which code?
ANSWER:->>>G91
15. Which of the methods listed here is recommended when adding fluid to a
coolant tank?
ANSWER:->>>Check the coolant ratio with a refractometer. Add soluble oil
and/or water as necessary to obtain the desired concentration
16. Select the answer that BEST describes the edit mode function
ANSWER:->>>Allow programs to be modified
17. To program the spindle to cut from point A to point B. Which axes and in
what directions would the spindle need to move?
ANSWER:->>>X+Y+
